// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()

const db = cloud.database()
const _ = db.command

// 云函数入口函数
exports.main = async (event, context) => {

  try {
    return await db.collection('say').doc(event._id).update({
      data: {
        commentNum: _.inc(1),
        redu: _.inc(20)
      }
    })
  } catch (e) {
    console.error(e)
  }

}